Credit Suisse AG ( Credit Suisse ), acting through its London branch

The information in this preliminary pricing supplement is not complete and may be changed. This preliminary pricing supplement is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted. Subject to completion dated March 28, 2019 Preliminary Pricing Supplement No. U3738 To the Underlying Supplement dated April 19, 2018, Product Supplement No. I-B dated June 30, 2017, Prospectus Supplement dated June 30, 2017 and Prospectus dated June 30, 2017 Financial Products Filed Pursuant to Rule 424(b)(2) Registration Statement No. 333-218604-02 March 28, 2019 $ Contingent Coupon Autocallable Yield Notes due April 30, 2024 Linked to the Performance of the Lowest Performing of the Russell 2000 Index and the EURO STOXX Banks Index The securities do not guarantee any return of principal at maturity and do not provide for the regular payment of interest. If these securities have not been previously automatically redeemed and if a Coupon Barrier Event has not occurred on an Observation Date, we will pay a contingent coupon on the immediately following Contingent Coupon Payment Date in an amount expected to be $25 (equivalent to approximately 10.00% per annum) (to be determined on the Trade Date) per $1,000 principal amount of securities. If a Coupon Barrier Event has occurred on an Observation Date, no contingent coupon will be paid with respect to that Observation Date. If a Trigger Event occurs, the securities will be automatically redeemed and you will receive a cash payment equal to the principal amount of the securities you hold plus the contingent coupon payable on the immediately following Contingent Coupon Payment Date. No further payments will be made following an Automatic Redemption. Payment will be made in respect of such Automatic Redemption on the Contingent Coupon Payment Date immediately following the relevant Trigger Observation Date. Any payment on the securities is subject to our ability to pay our obligations as they become due. Investors should be willing to (i) forgo dividends and the potential to participate in any appreciation of any Underlying and (ii) lose some or all of their investment if a Knock-In Event has occurred. Senior unsecured obligations of Credit Suisse maturing April 30, 2024. Any payment on the securities is subject to our ability to pay our obligations as they become due. Minimum purchase of $1,000. Minimum denominations of $1,000 and integral multiples of $1,000 in excess thereof. The offering price for the securities is expected to be determined on or about April 25, 2019 (the Trade Date ), and the securities are expected to settle on or about April 30, 2019 (the Settlement Date ). Delivery of the securities in book-entry form only will be made through The Depository Trust Company. The securities will not be listed on any exchange. Investing in the securities involves a number of risks. See Selected Risk Considerations beginning on page 7 of this pricing supplement and Risk Factors beginning on page PS-3 of any accompanying product supplement. Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of the securities or passed upon the accuracy or the adequacy of this pricing supplement or the accompanying underlying supplement, any product supplement, the prospectus supplement and the prospectus. Any representation to the contrary is a criminal offense. Price to Public (1) Underwriting Discounts and Commissions (2) Proceeds to Issuer Per security $1,000 $ $ Total $ $ $ (1) Certain fiduciary accounts may pay a purchase price of at least $962 per $1,000 principal amount of securities. (2) We or any agent (one of which may be our affiliate) may pay varying discounts and commissions of up to $38 per $1,000 principal amount of securities. CSSU or another broker or dealer will forgo some or all discounts and commissions with respect to the sales of securities into certain fiduciary accounts. For more detailed information, please see Supplemental Plan of Distribution (Conflicts of Interest) in this pricing supplement. Credit Suisse Securities (USA) LLC ( CSSU ) is our affiliate. For more information, see Supplemental Plan of Distribution (Conflicts of Interest) in this pricing supplement. Credit Suisse currently estimates the value of each $1,000 principal amount of the securities on the Trade Date will be between $940 and $970 (as determined by reference to our pricing models and the rate we are currently paying to borrow funds through issuance of the securities (our internal funding rate )). This range of estimated values reflects terms that are not yet fixed. A single estimated value reflecting final terms will be determined on the Trade Date. See Selected Risk Considerations in this pricing supplement. The securities are not deposit liabilities and are not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency of the United States, Switzerland or any other jurisdiction. Credit Suisse April, 2019

Key Terms Issuer: Underlyings: Contingent Coupons: Coupon Barrier Event: Redemption Amount: Automatic Redemption: Trigger Event: Credit Suisse AG ( Credit Suisse ), acting through its London branch The securities are linked to the performance of the lowest performing of the Underlyings set forth in the table below. For more information on the Underlyings, see The Reference Indices The FTSE Russell Indices The Russell 2000 Index and The Reference Indices The STOXX Indices The EURO STOXX Banks Index in the accompanying underlying supplement. Each Underlying is identified in the table below, together with its Bloomberg ticker symbol, Initial Level and expected Knock-In Level, Coupon Barrier Level and Trigger Level (each level to be determined on the Trade Date): Underlying Russell 2000 Index EURO STOXX Banks Index Ticker RTY <Index> SX7E <Index> Initial Level Knock-In Level (Approximately 67.50% of Initial Level) (Approximately 67.50% of Initial Level) Coupon Barrier Level (Approximately 67.50% of Initial Level) (Approximately 67.50% of Initial Level) Trigger Level (100% of Initial Level) (100% of Initial Level) If these securities have not been previously automatically redeemed and if a Coupon Barrier Event has not occurred on an Observation Date, we will pay a contingent coupon on the immediately following Contingent Coupon Payment Date in an amount expected to be $25 (equivalent to approximately 10.00% per annum) (to be determined on the Trade Date) per $1,000 principal amount of securities. If a Coupon Barrier Event has occurred on an Observation Date, no contingent coupon will be paid with respect to that Observation Date. If any Contingent Coupon Payment Date is not a business day, the contingent coupon will be payable on the first following business day, unless that business day falls in the next calendar month, in which case payment will be made on the first preceding business day. The amount of any contingent coupon will not be adjusted with respect to any postponement of a Contingent Coupon Payment Date and no interest or other payment will be payable hereon because of any such postponement of a Contingent Coupon Payment Date. No contingent coupons will be payable following an Automatic Redemption. Contingent coupons, if any, will be payable on the applicable Contingent Coupon Payment Date to the holder of record at the close of business on the business day immediately preceding the applicable Contingent Coupon Payment Date; provided that the contingent coupon payable on the Automatic Redemption Date or Maturity Date, as applicable, will be payable to the person to whom the Automatic Redemption Amount or the Redemption Amount, as applicable, is payable. A Coupon Barrier Event will occur if, on any Observation Date, the closing level of any Underlying on such Observation Date is less than its Coupon Barrier Level. If these securities have not been previously automatically redeemed at maturity, the Redemption Amount you will receive will depend on the individual performance of each Underlying and whether a Knock-In Event has occurred. For each $1,000 principal amount of securities, the Redemption Amount will be determined as follows: If a Knock-In Event has not occurred, $1,000. Therefore, you will not participate in any appreciation of any Underlying. If a Knock-In Event has occurred, $1,000 multiplied by the sum of one plus the Underlying Return of the Lowest Performing Underlying. In this case, the Redemption Amount will be less than $675 per $1,000 principal amount of securities. You could lose your entire investment. Any payment on the securities is subject to our ability to pay our obligations as they become due. If a Trigger Event occurs, the securities will be automatically redeemed and you will receive a cash payment equal to the principal amount of the securities you hold (the Automatic Redemption Amount ) and the contingent coupon payable on the immediately following Contingent Coupon Payment Date (the Automatic Redemption Date ). No further payments will be made following an Automatic Redemption. Payment will be made with respect to such Automatic Redemption on the Contingent Coupon Payment Date immediately following the relevant Trigger Observation Date. Any payment on the securities is subject to our ability to pay our obligations as they become due. A Trigger Event will occur if, on any Trigger Observation Date, the closing level of each Underlying on such Trigger Observation Date is equal to or greater than its respective Trigger Level. 1

Knock-In Event: Lowest Performing Underlying: Underlying Return: A Knock-In Event will occur if the Final Level of any Underlying is less than its Knock-In Level. The Underlying with the lowest Underlying Return. For each Underlying, the lesser of (i) zero and (ii) an amount calculated as follows: Final Level - Initial Level Initial Level Initial Level: Final Level: Valuation Date: Maturity Date: CUSIP: Key Dates: For each Underlying, the closing level of such Underlying on the Trade Date. In the event that the closing level for any Underlying is not available on the Trade Date, the Initial Level for such Underlying will be determined on the immediately following trading day on which a closing level is available. For each Underlying, the closing level of such Underlying on the Valuation Date. April 25, 2024, subject to postponement as set forth in any accompanying product supplement under Description of the Securities Postponement of calculation dates. April 30, 2024, subject to postponement as set forth in any accompanying product supplement under Description of the Securities Postponement of calculation dates. If the Maturity Date is not a business day, the Redemption Amount will be payable on the first following business day, unless that business day falls in the next calendar month, in which case payment will be made on the first preceding business day. 22552F670 Each Observation Date, Trigger Observation Date and Contingent Coupon Payment Date is set forth in the table below. The Key Dates are subject to postponement as set forth in any accompanying product supplement under Description of the Securities Postponement of calculation dates. Contingent Coupon Payment Observation Dates Trigger Observation Dates Dates July 25, 2019 July 30, 2019 October 25, 2019 October 25, 2019 October 30, 2019 January 27, 2020 January 27, 2020 January 30, 2020 April 27, 2020 April 27, 2020 April 30, 2020 July 27, 2020 July 27, 2020 July 30, 2020 October 27, 2020 October 27, 2020 October 30, 2020 January 26, 2021 January 26, 2021 January 29, 2021 April 27, 2021 April 27, 2021 April 30, 2021 July 27, 2021 July 27, 2021 July 30, 2021 October 26, 2021 October 26, 2021 October 29, 2021 January 26, 2022 January 26, 2022 January 31, 2022 April 26, 2022 April 26, 2022 April 29, 2022 July 26, 2022 July 26, 2022 July 29, 2022 October 26, 2022 October 26, 2022 October 31, 2022 January 25, 2023 January 25, 2023 January 30, 2023 April 25, 2023 April 25, 2023 April 28, 2023 July 26, 2023 July 26, 2023 July 31, 2023 October 25, 2023 October 25, 2023 October 30, 2023 January 25, 2024 January 25, 2024 January 30, 2024 Valuation Date Maturity Date You may revoke your offer to purchase the securities at any time prior to the time at which we accept such offer on the date the securities are priced. We reserve the right to change the terms of, or reject any offer to purchase the securities prior to their issuance. In the event of any changes to the terms of the securities, we will notify you and you will be asked to accept such changes in connection with your purchase. You may also choose to reject such changes in which case we may reject your offer to purchase. 2

Additional Terms Specific to the Securities You should read this pricing supplement together with the underlying supplement dated April 19, 2018, the product supplement dated June 30, 2017, the prospectus supplement dated June 30, 2017 and the prospectus dated June 30, 2017, relating to our Medium-Term Notes of which these securities are a part. You may access these documents on the SEC website at www.sec.gov as follows (or if such address has changed, by reviewing our filings for the relevant date on the SEC website): Underlying Supplement dated April 19, 2018: https://www.sec.gov/archives/edgar/data/1053092/000095010318004962/dp89590_424b2-underlying.htm Product Supplement No. I-B dated June 30, 2017: http://www.sec.gov/archives/edgar/data/1053092/000095010317006316/dp77781_424b2-ib.htm Prospectus Supplement and Prospectus dated June 30, 2017: http://www.sec.gov/archives/edgar/data/1053092/000104746917004364/a2232566z424b2.htm In the event the terms of the securities described in this pricing supplement differ from, or are inconsistent with, the terms described in the underlying supplement, any product supplement, the prospectus supplement or prospectus, the terms described in this pricing supplement will control. Our Central Index Key, or CIK, on the SEC website is 1053092. As used in this pricing supplement, we, us, or our refers to Credit Suisse. This pricing supplement, together with the documents listed above, contains the terms of the securities and supersedes all other prior or contemporaneous oral statements as well as any other written materials including preliminary or indicative pricing terms, fact sheets, correspondence, trade ideas, structures for implementation, sample structures, brochures or other educational materials of ours. We may, without the consent of the registered holder of the securities and the owner of any beneficial interest in the securities, amend the securities to conform to its terms as set forth in this pricing supplement and the documents listed above, and the trustee is authorized to enter into any such amendment without any such consent. You should carefully consider, among other things, the matters set forth in Selected Risk Considerations in this pricing supplement and Risk Factors in any accompanying product supplement, Foreign Currency Risks in the accompanying prospectus, and any risk factors we describe in the combined Annual Report on Form 20-F of Credit Suisse Group AG and us incorporated by reference therein, and any additional risk factors we describe in future filings we make with the SEC under the Securities Exchange Act of 1934, as amended, as the securities involve risks not associated with conventional debt securities. You should consult your investment, legal, tax, accounting and other advisors before deciding to invest in the securities. Prohibition of Sales to EEA Retail Investors The securities may not be offered, sold or otherwise made available to any retail investor in the European Economic Area. For the purposes of this provision: (a) the expression retail investor means a person who is one (or more) of the following: (i) a retail client as defined in point (11) of Article 4(1) of Directive 2014/65/EU (as amended, MiFID II ); or (ii) a customer within the meaning of Directive 2002/92/EC, where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II; or (iii) not a qualified investor as defined in Directive 2003/71/EC; and (b) the expression offer includes the communication in any form and by any means of sufficient information on the terms of the offer and the securities offered so as to enable an investor to decide to purchase or subscribe the securities. 3

Hypothetical Redemption Amounts and Total Payments on the Securities The tables and examples below illustrate, for a $1,000 investment in the securities, hypothetical Redemption Amounts payable at maturity for a hypothetical range of Underlying Returns of the Lowest Performing Underlying and, in the case of Table 2, total contingent coupons payable over the term of the securities, which will depend on the number of Coupon Barrier Events that have occurred over the term of the securities. The tables and examples below assume (i) if a Coupon Barrier Event does not occur on an Observation Date, a contingent coupon of $25 per $1,000 principal amount of securities will be paid on the immediately following Contingent Coupon Payment Date, (ii) the securities are not automatically redeemed prior to maturity, (iii) the term of the securities is exactly five years and (iv) the Knock-In Level for each Underlying is 67.50% of the Initial Level of such Underlying. The actual contingent coupon amount and Knock-In Levels will be determined on the Trade Date. The examples are intended to illustrate hypothetical calculations of only the Redemption Amount and do not illustrate the calculation or payment of any individual contingent coupon. The hypothetical Redemption Amounts and total contingent coupons set forth below are for illustrative purposes only. The actual Redemption Amount and total contingent coupons applicable to a purchaser of the securities, if any, will depend on the number of Coupon Barrier Events that have occurred over the term of the securities, whether a Knock-In Event has occurred and on the Final Level of the Lowest Performing Underlying. It is not possible to predict how many Coupon Barrier Events will occur, if any, or whether a Knock-In Event will occur and, in the event that there is a Knock-In Event, by how much the level of the Lowest Performing Underlying has decreased from its Initial Level to its Final Level. Furthermore, it is not possible to predict whether a Trigger Event will occur. If a Trigger Event occurs, the securities will be automatically redeemed for a cash payment equal to the principal amount of the securities you hold plus the contingent coupon payable, and no further payments will be made in respect of the securities. You will not participate in any appreciation in the Underlyings. You should consider carefully whether the securities are suitable to your investment goals. Any payment on the securities is subject to our ability to pay our obligations as they become due. The numbers appearing in the tables and examples below have been rounded for ease of analysis. TABLE 1: Hypothetical Redemption Amounts Percentage Change from the Initial Level to the Final Level of the Lowest Performing Underlying Underlying Return of the Lowest Performing Underlying Redemption Amount (excluding contingent coupons, if any) Total Contingent Coupons 100% 0% $1,000 90% 0% $1,000 80% 0% $1,000 70% 0% $1,000 60% 0% $1,000 50% 0% $1,000 40% 0% $1,000 30% 0% $1,000 20% 0% $1,000 10% 0% $1,000 0% 0% $1,000-10% -10% $1,000-20% -20% $1,000-30% -30% $1,000-32.50% -32.50% $1,000-33% -33% $670-40% -40% $600 (See Table 2 below) -50% -50% $500-60% -60% $400-70% -70% $300-80% -80% $200-90% -90% $100-100% -100% $0 4

TABLE 2: The expected total contingent coupons will depend on how many Coupon Barrier Events occur. Number of Coupon Barrier Events Total Contingent Coupons A Coupon Barrier Event does not occur on any Observation Date $500 A Coupon Barrier Event occurs on 1 Observation Date $475 A Coupon Barrier Event occurs on 2 Observation Dates $450 A Coupon Barrier Event occurs on 3 Observation Dates $425 A Coupon Barrier Event occurs on 4 Observation Dates $400 A Coupon Barrier Event occurs on 5 Observation Dates $375 A Coupon Barrier Event occurs on 6 Observation Dates $350 A Coupon Barrier Event occurs on 7 Observation Dates $325 A Coupon Barrier Event occurs on 8 Observation Dates $300 A Coupon Barrier Event occurs on 9 Observation Dates $275 A Coupon Barrier Event occurs on 10 Observation Dates $250 A Coupon Barrier Event occurs on 11 Observation Dates $225 A Coupon Barrier Event occurs on 12 Observation Dates $200 A Coupon Barrier Event occurs on 13 Observation Dates $175 A Coupon Barrier Event occurs on 14 Observation Dates $150 A Coupon Barrier Event occurs on 15 Observation Dates $125 A Coupon Barrier Event occurs on 16 Observation Dates $100 A Coupon Barrier Event occurs on 17 Observation Dates $75 A Coupon Barrier Event occurs on 18 Observation Dates $50 A Coupon Barrier Event occurs on 19 Observation Dates $25 A Coupon Barrier Event occurs on 20 Observation Dates $0 The total payment on the securities will be equal to the Redemption Amount applicable to an investor plus the total contingent coupons payable on the securities. The following examples illustrate how the Redemption Amount is calculated. 5

Example 1: A Knock-In Event has occurred. Underlying RTY SX7E Final Level 110% of Initial Level 45% of Initial Level Because the Final Level of an Underlying is less than its Knock-In Level, a Knock-In Event has occurred. SX7E is the Lowest Performing Underlying. Therefore, the Redemption Amount is determined as follows: Underlying Return of the Lowest Performing Underlying Redemption Amount = the lesser of (i) zero and (ii) (Final Level - Initial Level) / Initial Level = the lesser of (i) zero and (ii) -55% = -55% = $1,000 (1 + Underlying Return of the Lowest Performing Underlying) = $1,000 0.45 = $450 Even though the Final Level of an Underlying is greater than its Initial Level, you will not participate in such appreciation of such Underlying and you will be exposed to the depreciation in the Lowest Performing Underlying. Example 2: A Knock-In Event has not occurred. Underlying RTY SX7E Final Level 110% of Initial Level 105% of Initial Level Because the Final Level of each Underlying is equal to or greater than its Knock-In Level, a Knock-In Event has not occurred. Even though the Final Level of each Underlying is greater than its Initial Level, you will not participate in the appreciation of any Underlying. Therefore, the Redemption Amount equals $1,000. Example 3: A Knock-In Event has not occurred. Underlying RTY SX7E Final Level 85% of Initial Level 85% of Initial Level Even though the Final Level of each Underlying is less than its Initial Level, because the Final Level of each Underlying is equal to or greater than its Knock-In Level, a Knock-In Event has not occurred. Therefore, the Redemption Amount equals $1,000. 6

Selected Risk Considerations An investment in the securities involves significant risks. Investing in the securities is not equivalent to investing directly in the Underlyings. These risks are explained in more detail in the Risk Factors section of any accompanying product supplement. YOU MAY RECEIVE LESS THAN THE PRINCIPAL AMOUNT AT MATURITY If the securities are not automatically redeemed prior to the Maturity Date, you may receive less at maturity than you originally invested in the securities, or you may receive nothing, excluding contingent coupons, if any. If a Knock-In Event has occurred, you will be fully exposed to any depreciation in the Lowest Performing Underlying. In this case, the Redemption Amount you will receive will be less than the principal amount of the securities, and you could lose your entire investment. It is not possible to predict whether a Knock-In Event will occur, and in the event that there is a Knock-In Event, by how much the level of the Lowest Performing Underlying has decreased from its Initial Level to its Final Level. Any payment on the securities is subject to our ability to pay our obligations as they become due. REGARDLESS OF THE AMOUNT OF ANY PAYMENT YOU RECEIVE ON THE SECURITIES, YOUR ACTUAL YIELD MAY BE DIFFERENT IN REAL VALUE TERMS Inflation may cause the real value of any payment you receive on the securities to be less at maturity than it is at the time you invest. An investment in the securities also represents a forgone opportunity to invest in an alternative asset that generates a higher real return. You should carefully consider whether an investment that may result in a return that is lower than the return on alternative investments is appropriate for you. THE SECURITIES DO NOT PROVIDE FOR REGULAR FIXED INTEREST PAYMENTS Unlike conventional debt securities, the securities do not provide for regular fixed interest payments. The number of contingent coupons you receive over the term of the securities, if any, will depend on the performance of the Underlyings during the term of the securities and the number of Coupon Barrier Events that occur. If a Coupon Barrier Event has occurred on an Observation Date, no contingent coupon will be paid with respect to that Observation Date. Accordingly, if a Coupon Barrier Event occurs on every Observation Date, you will not receive any contingent coupons during the term of the securities. Thus, the securities are not a suitable investment for investors who require regular fixed income payments, since the number of contingent coupons is variable and may be zero. In addition, if rates generally increase over the term of the securities, it is more likely that the contingent coupon, if any, could be less than the yield one might receive based on market rates at that time. This would have the further effect of decreasing the value of your securities both nominally in terms of below-market coupons and in real value terms. Furthermore, it is possible that you will not receive some or all of the contingent coupons over the term of the securities, and still lose your principal amount. Even if you do receive some or all of your principal amount at maturity, you will not be compensated for the time value of money. These securities are not short-term investments, so you should carefully consider these risks before investing. MORE FAVORABLE TERMS TO YOU ARE GENERALLY ASSOCIATED WITH AN UNDERLYING WITH GREATER EXPECTED VOLATILITY AND THEREFORE CAN INDICATE A GREATER RISK OF LOSS Volatility refers to the frequency and magnitude of changes in the level of an Underlying. The greater the expected volatility with respect to an Underlying on the Trade Date, the higher the expectation as of the Trade Date that the closing level of such Underlying could be less than its (i) Coupon Barrier Level on any Observation Date or (ii) Knock- In Level on the Valuation Date, indicating a higher expected risk of loss on the securities. This greater expected risk will generally be reflected in a higher contingent coupon than the yield payable on our conventional debt securities with a similar maturity, or in more favorable terms (such as lower Coupon Barrier Levels or Knock-In Levels) than for similar securities linked to the performance of an underlying with a lower expected volatility as of the Trade Date. You should therefore understand that a relatively higher contingent coupon may indicate an increased risk of loss. Further, relatively lower Coupon Barrier Levels or Knock-In Levels may not necessarily indicate that you will receive a contingent coupon on any Contingent Coupon Payment Date or that the securities have a greater likelihood of a return of principal at maturity. The volatility of any Underlying can change significantly over the term of the securities. The levels of the Underlyings for your securities could fall sharply, which could result in a significant loss of principal. You should be willing to accept the downside market risk of the Underlyings and the potential to lose a significant amount of your principal at maturity. AT MATURITY OR UPON AUTOMATIC REDEMPTION, THE SECURITIES WILL NOT PAY MORE THAN THE PRINCIPAL AMOUNT PLUS THE FINAL CONTINGENT COUPON, IF ANY At maturity or upon Automatic Redemption, the securities will not pay more than the principal amount plus the final contingent coupon, if any, regardless of the performance of any Underlying. Even if the Final Level of each Underlying is greater than its respective Initial Level, you will not participate in the appreciation of any Underlying. The maximum amount payable with respect to the securities (excluding contingent coupons, if any) is $1,000 for each $1,000 principal amount of the securities. THE SECURITIES ARE SUBJECT TO THE CREDIT RISK OF CREDIT SUISSE Investors are dependent on our ability to pay all amounts due on the securities and, therefore, if we were to default on our obligations, you may not receive any amounts owed to you under the securities. In addition, any decline in our credit ratings, any adverse 7

changes in the market s view of our creditworthiness or any increase in our credit spreads is likely to adversely affect the value of the securities prior to maturity. THE SECURITIES ARE SUBJECT TO A POTENTIAL AUTOMATIC REDEMPTION, WHICH EXPOSES YOU TO REINVESTMENT RISK The securities are subject to a potential Automatic Redemption. If the securities are automatically redeemed prior to the Maturity Date, you may be unable to invest in other securities with a similar level of risk that provide you with the opportunity to be paid the same coupons as the securities. AN AUTOMATIC REDEMPTION WOULD LIMIT YOUR OPPORTUNITY TO BE PAID CONTINGENT COUPONS OVER THE FULL TERM OF THE SECURITIES The securities are subject to a potential Automatic Redemption. If a Trigger Event occurs, the securities will be automatically redeemed and you will receive a cash payment equal to the principal amount of the securities you hold and the contingent coupon payable on that Contingent Coupon Payment Date, and no further payments will be made with respect to the securities. In this case, you will lose the opportunity to continue to be paid contingent coupons from the Automatic Redemption Date to the scheduled Maturity Date. YOU WILL BE SUBJECT TO RISKS RELATING TO THE RELATIONSHIP BETWEEN THE UNDERLYINGS The securities are linked to the individual performance of each Underlying. As such, the securities will perform poorly if only one of the Underlyings performs poorly. For example, if one Underlying appreciates from its Initial Level to its Final Level, but the Final Level of the Lowest Performing Underlying is less than its Knock-In Level, you will be exposed to the depreciation of the Lowest Performing Underlying and you will not benefit from the performance of any other Underlying. Each additional Underlying to which the securities are linked increases the risk that the securities will perform poorly. By investing in the securities, you assume the risk that (i) the Final Level of at least one of the Underlyings will be less than its Knock-In Level and (ii) a Coupon Barrier Event occurs with respect to at least one of the Underlyings on one or more Observation Dates, regardless of the performance of any other Underlying. It is impossible to predict the relationship between the Underlyings. If the performances of the Underlyings exhibit no relationship to each other, it is more likely that one of the Underlyings will cause the securities to perform poorly. However, if the performances of the equity securities included in each Underlying are related such that the performances of the Underlyings are correlated, then there is less likelihood that only one Underlying will cause the securities to perform poorly. Furthermore, to the extent that each Underlying represents a different market segment or market sector, the risk of one Underlying performing poorly is greater. As a result, you are not only taking market risk on each Underlying, you are also taking a risk relating to the relationship among the Underlyings. THE SECURITIES ARE LINKED TO THE RUSSELL 2000 INDEX AND ARE SUBJECT TO THE RISKS ASSOCIATED WITH SMALL-CAPITALIZATION COMPANIES The Russell 2000 Index is composed of equity securities issued by companies with relatively small market capitalization. These equity securities often have greater stock price volatility, lower trading volume and less liquidity than the equity securities of large-capitalization companies, and are more vulnerable to adverse business and economic developments than those of largecapitalization companies. In addition, small-capitalization companies are typically less established and less stable financially than large-capitalization companies. These companies may depend on a small number of key personnel, making them more vulnerable to loss of personnel. Such companies tend to have smaller revenues, less diverse product lines, smaller shares of their product or service markets, fewer financial resources and less competitive strengths than large-capitalization companies and are more susceptible to adverse developments related to their products. Therefore, the Russell 2000 Index may be more volatile than it would be if it were composed of equity securities issued by large-capitalization companies. FOREIGN SECURITIES MARKETS RISK Some or all of the assets included in the EURO STOXX Banks Index are issued by foreign companies and trade in foreign securities markets. Investments in the securities therefore involve risks associated with the securities markets in those countries, including risks of volatility in those markets, government intervention in those markets and cross shareholdings in companies in certain countries. Also, foreign companies are generally subject to accounting, auditing and financial reporting standards and requirements and securities trading rules different from those applicable to U.S. reporting companies. The equity securities included in the EURO STOXX Banks Index may be more volatile than domestic equity securities and may be subject to different political, market, economic, exchange rate, regulatory and other risks, including changes in foreign governments, economic and fiscal policies, currency exchange laws or other laws or restrictions. Moreover, the economies of foreign countries may differ favorably or unfavorably from the economy of the United States in such respects as growth of gross national product, rate of inflation, capital reinvestment, resources and self-sufficiency. These factors may adversely affect the values of the equity securities included in the EURO STOXX Banks Index, and therefore the performance of the EURO STOXX Banks Index and the value of the securities. THE CLOSING LEVEL OF THE EURO STOXX BANKS INDEX WILL NOT BE ADJUSTED FOR CHANGES IN EXCHANGE RATES RELATIVE TO THE U.S. DOLLAR EVEN THOUGH THE EQUITY SECURITIES INCLUDED IN THE EURO STOXX BANKS INDEX ARE TRADED IN A FOREIGN CURRENCY AND THE SECURITIES ARE DENOMINATED IN U.S. DOLLARS The value of your securities will not be adjusted for exchange rate fluctuations between the U.S. dollar and the currencies in which the equity securities included in the EURO STOXX 8

Banks Index are based. Therefore, if the applicable currencies appreciate or depreciate relative to the U.S. dollar over the term of the securities, you will not receive any additional payment or incur any reduction in your return, if any, at maturity. THE STOCKS INCLUDED IN THE EURO STOXX BANKS INDEX ARE CONCENTRATED IN ONE PARTICULAR SECTOR All of the stocks included in the EURO STOXX Banks Index are issued by companies in a single sector. As a result, the stocks that will determine the performance of the EURO STOXX Banks Index are concentrated in a single sector. Although an investment in the securities will not give holders any ownership or other direct interests in the stocks held by the EURO STOXX Banks Index, the return on an investment in the securities will be subject to certain risks associated with a direct equity investment in companies in a single sector. Accordingly, by investing in the securities, you will not benefit from the diversification which could result from an investment linked to companies that operate in a broader range of sectors. HEDGING AND TRADING ACTIVITY We or any of our affiliates may carry out hedging activities related to the securities, including in instruments related to the Underlyings. We or our affiliates may also trade instruments related to the Underlyings from time to time. Any of these hedging or trading activities on or prior to the Trade Date and during the term of the securities could adversely affect our payment to you at maturity. THE ESTIMATED VALUE OF THE SECURITIES ON THE TRADE DATE MAY BE LESS THAN THE PRICE TO PUBLIC The initial estimated value of your securities on the Trade Date (as determined by reference to our pricing models and our internal funding rate) may be significantly less than the original Price to Public. The Price to Public of the securities includes any discounts or commissions as well as transaction costs such as expenses incurred to create, document and market the securities and the cost of hedging our risks as issuer of the securities through one or more of our affiliates (which includes a projected profit). These costs will be effectively borne by you as an investor in the securities. These amounts will be retained by Credit Suisse or our affiliates in connection with our structuring and offering of the securities (except to the extent discounts or commissions are reallowed to other broker-dealers or any costs are paid to third parties). On the Trade Date, we value the components of the securities in accordance with our pricing models. These include a fixed income component valued using our internal funding rate, and individual option components valued using mid-market pricing. As such, the payout on the securities can be replicated using a combination of these components and the value of these components, as determined by us using our pricing models, will impact the terms of the securities at issuance. Our option valuation models are proprietary. Our pricing models take into account factors such as interest rates, volatility and time to maturity of the securities, and they rely in part on certain assumptions about future events, which may prove to be incorrect. Because Credit Suisse s pricing models may differ from other issuers valuation models, and because funding rates taken into account by other issuers may vary materially from the rates used by Credit Suisse (even among issuers with similar creditworthiness), our estimated value at any time may not be comparable to estimated values of similar securities of other issuers. EFFECT OF INTEREST RATE USED IN STRUCTURING THE SECURITIES The internal funding rate we use in structuring securities such as these securities is typically lower than the interest rate that is reflected in the yield on our conventional debt securities of similar maturity in the secondary market (our secondary market credit spreads ). If on the Trade Date our internal funding rate is lower than our secondary market credit spreads, we expect that the economic terms of the securities will generally be less favorable to you than they would have been if our secondary market credit spread had been used in structuring the securities. We will also use our internal funding rate to determine the price of the securities if we post a bid to repurchase your securities in secondary market transactions. See Secondary Market Prices below. SECONDARY MARKET PRICES If Credit Suisse (or an affiliate) bids for your securities in secondary market transactions, which we are not obligated to do, the secondary market price (and the value used for account statements or otherwise) may be higher or lower than the Price to Public and the estimated value of the securities on the Trade Date. The estimated value of the securities on the cover of this pricing supplement does not represent a minimum price at which we would be willing to buy the securities in the secondary market (if any exists) at any time. The secondary market price of your securities at any time cannot be predicted and will reflect the then-current estimated value determined by reference to our pricing models and other factors. These other factors include our internal funding rate, customary bid and ask spreads and other transaction costs, changes in market conditions and any deterioration or improvement in our creditworthiness. In circumstances where our internal funding rate is lower than our secondary market credit spreads, our secondary market bid for your securities could be more favorable than what other dealers might bid because, assuming all else equal, we use the lower internal funding rate to price the securities and other dealers might use the higher secondary market credit spread to price them. Furthermore, assuming no change in market conditions from the Trade Date, the secondary market price of your securities will be lower than the Price to Public because it will not include any discounts or commissions and hedging and other transaction costs. If you sell your securities to a dealer in a secondary market transaction, the dealer may impose an 9

additional discount or commission, and as a result the price you receive on your securities may be lower than the price at which we may repurchase the securities from such dealer. We (or an affiliate) may initially post a bid to repurchase the securities from you at a price that will exceed the thencurrent estimated value of the securities. That higher price reflects our projected profit and costs that were included in the Price to Public, and that higher price may also be initially used for account statements or otherwise. We (or our affiliate) may offer to pay this higher price, for your benefit, but the amount of any excess over the then-current estimated value will be temporary and is expected to decline over a period of approximately three months. The securities are not designed to be short-term trading instruments and any sale prior to maturity could result in a substantial loss to you. You should be willing and able to hold your securities to maturity. CREDIT SUISSE IS SUBJECT TO SWISS REGULATION As a Swiss bank, Credit Suisse is subject to regulation by governmental agencies, supervisory authorities and self-regulatory organizations in Switzerland. Such regulation is increasingly more extensive and complex and subjects Credit Suisse to risks. For example, pursuant to Swiss banking laws, the Swiss Financial Market Supervisory Authority (FINMA) may open resolution proceedings if there are justified concerns that Credit Suisse is over-indebted, has serious liquidity problems or no longer fulfills capital adequacy requirements. FINMA has broad powers and discretion in the case of resolution proceedings, which include the power to convert debt instruments and other liabilities of Credit Suisse into equity and/or cancel such liabilities in whole or in part. If one or more of these measures were imposed, such measures may adversely affect the terms and market value of the securities and/or the ability of Credit Suisse to make payments thereunder and you may not receive any amounts owed to you under the securities. LACK OF LIQUIDITY The securities will not be listed on any securities exchange. Credit Suisse (or its affiliates) intends to offer to purchase the securities in the secondary market but is not required to do so. Even if there is a secondary market, it may not provide enough liquidity to allow you to trade or sell the securities when you wish to do so. Because other dealers are not likely to make a secondary market for the securities, the price at which you may be able to trade your securities is likely to depend on the price, if any, at which Credit Suisse (or its affiliates) is willing to buy the securities. If you have to sell your securities prior to maturity, you may not be able to do so or you may have to sell them at a substantial loss. POTENTIAL CONFLICTS We and our affiliates play a variety of roles in connection with the issuance of the securities, including acting as calculation agent and as agent of the issuer for the offering of the securities, hedging our obligations under the securities and determining their estimated value. In performing these duties, the economic interests of us and our affiliates are potentially adverse to your interests as an investor in the securities. Further, hedging activities may adversely affect any payment on or the value of the securities. Any profit in connection with such hedging activities will be in addition to any other compensation that we and our affiliates receive for the sale of the securities, which creates an additional incentive to sell the securities to you. UNPREDICTABLE ECONOMIC AND MARKET FACTORS WILL AFFECT THE VALUE OF THE SECURITIES The payout on the securities can be replicated using a combination of the components described in The estimated value of the securities on the Trade Date may be less than the Price to Public. Therefore, in addition to the levels of any Underlying, the terms of the securities at issuance and the value of the securities prior to maturity may be influenced by factors that impact the value of fixed income securities and options in general, such as: o the expected and actual volatility of the Underlyings; o o o o o o o the expected and actual correlation, if any, between the Underlyings; the time to maturity of the securities; the dividend rate on the equity securities included in the Underlyings; interest and yield rates in the market generally; investors expectations with respect to the rate of inflation; geopolitical conditions and economic, financial, political, regulatory or judicial events that affect the components included in the Underlyings or markets generally and which may affect the levels of the Underlyings; and our creditworthiness, including actual or anticipated downgrades in our credit ratings. Some or all of these factors may influence the price that you will receive if you choose to sell your securities prior to maturity. The impact of any of the factors set forth above may enhance or offset some or all of any change resulting from another factor or factors. 10

NO OWNERSHIP RIGHTS RELATING TO THE UNDERLYINGS Your return on the securities will not reflect the return you would realize if you actually owned the equity securities that comprise the Underlyings. The return on your investment is not the same as the total return based on a purchase of the equity securities that comprise the Underlyings. NO DIVIDEND PAYMENTS OR VOTING RIGHTS As a holder of the securities, you will not have voting rights or rights to receive cash dividends or other distributions or other rights with respect to the equity securities that comprise the Underlyings. THE U.S. FEDERAL TAX CONSEQUENCES OF AN INVESTMENT IN THE SECURITIES ARE UNCLEAR There is no direct legal authority regarding the proper U.S. federal tax treatment of the securities, and we do not plan to request a ruling from the Internal Revenue Service (the IRS ). Consequently, significant aspects of the tax treatment of the securities are uncertain, and the IRS or a court might not agree with the treatment of the securities as described in United States Federal Tax Considerations below. If the IRS were successful in asserting an alternative treatment, the tax consequences of ownership and disposition of the securities, including the timing and character of income recognized by U.S. investors and the withholding tax consequences to non-u.s. investors, might be materially and adversely affected. Moreover, future legislation, Treasury regulations or IRS guidance could adversely affect the U.S. federal tax treatment of the securities, possibly retroactively. Supplemental Use of Proceeds and Hedging We intend to use the proceeds of this offering for our general corporate purposes, which may include the refinancing of existing debt outside Switzerland. Some or all of the proceeds we receive from the sale of the securities may be used in connection with hedging our obligations under the securities through one or more of our affiliates. Such hedging or trading activities on or prior to the Trade Date and during the term of the securities (including on any calculation date, as defined in any accompanying product supplement) could adversely affect the value of the Underlyings and, as a result, could decrease the amount you may receive on the securities at maturity. For additional information, see Supplemental Use of Proceeds and Hedging in any accompanying product supplement. 11

Jan-14 Apr-14 Jul-14 Oct-14 Jan-15 Apr-15 Jul-15 Oct-15 Jan-16 Apr-16 Jul-16 Oct-16 Jan-17 Apr-17 Jul-17 Oct-17 Jan-18 Apr-18 Jul-18 Oct-18 Jan-19 Closing Level Jan-14 Apr-14 Jul-14 Oct-14 Jan-15 Apr-15 Jul-15 Oct-15 Jan-16 Apr-16 Jul-16 Oct-16 Jan-17 Apr-17 Jul-17 Oct-17 Jan-18 Apr-18 Jul-18 Oct-18 Jan-19 Closing Level Historical Information The following graphs set forth the historical performance of the Underlyings based on the closing level of each Underlying from January 2, 2014 through March 26, 2019. We obtained the historical information below from Bloomberg, without independent verification. You should not take the historical levels of the Underlyings as an indication of future performance of the Underlyings or the securities. Any historical trend in the levels of the Underlyings during any period set forth below is not an indication that the levels of the Underlyings are more or less likely to increase or decrease at any time over the term of the securities. For additional information on the Russell 2000 Index and the EURO STOXX Banks Index, see The Reference Indices The FTSE Russell Indices The Russell 2000 Index and The Reference Indices The STOXX Indices The EURO STOXX Banks Index in the accompanying underlying supplement. The closing level of the Russell 2000 Index on March 26, 2019 was 1528.166. Historical Performance of the Russell 2000 Index 2000 1800 1600 1400 1200 1000 800 600 400 200 0 Source: Bloomberg The closing level of the EURO STOXX Banks Index on March 26, 2019 was 91.75. Historical Performance of the EURO STOXX Banks Index 200 180 160 140 120 100 80 60 40 20 0 Source: Bloomberg 12